Display panel and display device

Abstract

The present application provides a display panel and a display device, wherein the display panel includes: a substrate; a light-emitting layer, located on one side of the substrate, including: a plurality of first pixel repeating units, located in a first display area, including a plurality of first sub-pixels; a plurality of second pixel repeating units, located in a second display area, including a plurality of second sub-pixels, wherein the number of second sub-pixels in the second pixel repeating unit is the same as the number of first sub-pixels in the first pixel repeating unit, and the minimum spacing between two adjacent second pixel repeating units is greater than the minimum spacing between two adjacent first pixel repeating units; and a metal light-shielding layer, arranged between the light-emitting layer and the substrate, including: a plurality of first light-shielding blocks, located in the second display area, wherein the first light-shielding blocks are arranged to at least partially overlap with the corresponding second pixel repeating units.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In the design of active organic light-emitting diode (OLED) display panels, achieving full-screen display and under-screen light sensing has always been a challenge. The most significant challenge lies in increasing the transmittance of the photosensitive area. A commonly used design currently involves drilling holes in the photosensitive area. This approach results in higher transmittance in the photosensitive area, but the area does not emit light and display, preventing a full-screen display and resulting in a poor user experience. Another approach, which has emerged in recent years, is to reduce the pixel density in the photosensitive area to increase transmittance while ensuring normal light emission and display in the area. This approach offers a relatively better user experience, but the overall transmittance remains low.

[0003] Therefore, how to improve the light transmittance of the photosensitive area remains a difficult problem that needs to be solved urgently. Summary of the Invention

[0004] The purpose of the present application is to provide a display panel to improve the light transmittance of the second display area of ​​the display panel.

[0005] To achieve the above objectives, the technical solutions are as follows:

[0006] A display panel having a first display area and a second display area, the display panel comprising:

[0007] substrate;

[0008] A light-emitting layer is located on one side of the substrate, and the light-emitting layer includes:

[0009] a plurality of first pixel repeating units, located in the first display area, wherein one of the first pixel repeating units includes a plurality of first sub-pixels; and

[0010] a plurality of second pixel repeating units located in the second display area, each second pixel repeating unit including a plurality of second sub-pixels, the number of the second sub-pixels in each second pixel repeating unit being the same as the number of the first sub-pixels in each first pixel repeating unit, and a minimum spacing between two adjacent second pixel repeating units being greater than a minimum spacing between two adjacent first pixel repeating units; and

[0011] A metal light-shielding layer is provided between the light-emitting layer and the substrate, and the metal light-shielding layer includes:

[0012] A plurality of first light shielding blocks are located in the second display area, and the first light shielding blocks are at least partially overlapped with the corresponding second pixel repeating units.

[0013] A display device comprises the above-mentioned display panel and a photosensitive element, wherein the photosensitive element is arranged corresponding to the second display area.

[0014] Beneficial Effects: The present application provides a display panel and a display device. By ensuring that the minimum spacing between two adjacent second pixel repeating units is greater than the minimum spacing between two adjacent first pixel repeating units, the light-transmitting opening of the cathode in the second display area can be larger, thereby reducing the cathode area ratio in the second display area and improving the light transmittance of the second display area. Furthermore, while the minimum spacing between two adjacent second pixel repeating units is greater than the minimum spacing between two adjacent first pixel repeating units, at least a portion of the second pixel repeating units are configured such that each second pixel repeating unit corresponds to a first light-shielding block, and a first light-shielding block is configured to at least partially overlap with a corresponding second pixel repeating unit. This allows the cathode layer in the second display area to be patterned using multiple first light-shielding blocks, while a first light-shielding block protects multiple second sub-pixels of a second pixel repeating unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic plan view of a display device according to an embodiment of the present application;

[0016] Figure 2 This is a schematic cross-sectional view of a display device according to an embodiment of the present application;

[0017] Figure 3 for Figure 2 A first plan view of a first pixel repeating unit in a first display area and a second pixel repeating unit in a second display area in the display panel is shown;

[0018] Figure 4 for Figure 2 A schematic cross-sectional view of the display panel shown;

[0019] Figure 5 is a schematic cross-sectional view of a display panel of a display device according to another embodiment of the present application;

[0020] Figure 6 for Figure 2 A second plan view of a first pixel repeating unit in a first display area and a second pixel repeating unit in a second display area in the display panel;

[0021] Figure 7 for Figure 4 A schematic plan view of the second electrode layer in the display panel shown;

[0022] Figure 8 for Figure 2 A partial enlarged schematic diagram of the display panel shown;

[0023] Figure 9 for Figure 2 A first plan view of the metal light-shielding layer and a plurality of shielding metal blocks of the display panel is shown;

[0024] Figure 10 for Figure 2 A second plan view of the metal light-shielding layer and multiple shielding metal blocks of the display panel is shown. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0026] like Figure 1 and Figure 2 As shown, the present application provides a display device 100, which includes a display panel 10 and a photosensitive element 20. The display panel 10 is an organic light emitting diode display panel, and the photosensitive element 20 is a camera, an infrared sensor, etc.

[0027] The display panel 10 has a first display area 10a, a second display area 10b, a transition display area 10c, and a non-display area 10d. The first display area 10a is located outside the second display area 10b, the transition display area 10c is located between the first display area 10a and the second display area 10b, and the non-display area 10d is located outside the first display area 10a. The first display area 10a, the second display area 10b, and the transition display area 10c are all used for display, while the non-display area 10d is not used for display. The second display area 10b is also used for light transmission. The transmittance of the second display area 10b to light is greater than the transmittance of the first display area 10a and the transition display area 10c to light. The photosensitive element 20 is located on the back side of the light-emitting surface of the display panel 10 and is arranged corresponding to the second display area 10b of the display panel 10.

[0028] The area of ​​the first display area 10a is larger than the area of ​​the second display area 10b and the area of ​​the transition display area 10c. The second display area 10b is circular, and the transition display area 10c is annular. It is understood that the shape of the second display area 10b can also be elliptical, square, or rectangular.

[0029] like Figure 3 and Figure 4 As shown, Figure 3 (A) is a schematic diagram of a plurality of first pixel repeating units located in the first display area, Figure 3 (B) is a schematic diagram of a plurality of second pixel repeating units located in the second display area, Figure 4 for Figure 2 The figure shows a cross-sectional schematic diagram of a display panel. Display panel 10 includes a substrate 11 and a light-emitting layer 12, which is located on one side of substrate 11. Light-emitting layer 12 includes a plurality of first pixel repeating units 121 located in a first display area 10a and a plurality of second pixel repeating units 122 located in a second display area 10b. The first pixel repeating units 121 are arranged as repeating units in an array in the first display area 10a, and the second pixel repeating units 122 are arranged as repeating units in an array in the second display area 10b. Light-emitting layer 12 is made of an organic light-emitting material.

[0030] A first pixel repeating unit 121 includes a plurality of first sub-pixels 123, and a second pixel repeating unit 122 includes a plurality of second sub-pixels 124. The number of second sub-pixels 124 in a second pixel repeating unit 122 is the same as the number of first sub-pixels 123 in a first pixel repeating unit 121. The arrangement of the plurality of first sub-pixels 123 in a first pixel repeating unit 121 is the same as the arrangement of the plurality of second sub-pixels 124 in a second pixel repeating unit 122. The distribution density of the second pixel repeating unit 122 in the second display area 10b is the same as the distribution density of the first pixel repeating unit 121 in an area of ​​the first display area 10a having the same shape and area as the second display area 10b. The distribution density of the plurality of second sub-pixels 124 in the second display area 10b is the same as the distribution density of the plurality of first sub-pixels 123 in an area of ​​the first display area 10a having the same shape and area as the second display area 10b.

[0031] It should be noted that the distribution density refers to the ratio of the number to the area. For example, the distribution density of the second pixel repeating units 122 in the second display area 10b refers to the ratio of the number of the second pixel repeating units 122 in the second display area 10b to the area of ​​the second display area 10b.

[0032] The light-emitting layer 12 further includes a plurality of third sub-pixels 125 located in the transitional display area 10c. The shape, size and arrangement of the plurality of third sub-pixels 125 in the transitional display area 10c may be the same as those of the plurality of first sub-pixels 123 in the first display area 10a.

[0033] like Figure 3As shown, the spacing between two adjacent first sub-pixels 123 in a first pixel repeating unit 121 is greater than the spacing between two adjacent second sub-pixels 124 in a second pixel repeating unit 122, so that the multiple second sub-pixels 124 in the second pixel repeating unit 122 are clustered relative to the multiple first sub-pixels 123 in the first pixel repeating unit 121. The area occupied by the multiple second sub-pixels 124 in a second pixel repeating unit 122 in the second display area 10b is reduced. At the same time, the distribution density of the second pixel repeating unit 122 in the second display area 10b is greater than that of the first pixel repeating unit 121 in the first display area 10a. When the distribution density in the second display area 10b is the same in the region with the same shape and area, the minimum spacing between two adjacent second pixel repeating units 122 is greater than the minimum spacing between two adjacent first pixel repeating units 121, and the area of ​​the light-transmitting opening 1262 that can be set between two adjacent second pixel repeating units 122 is larger. The area of ​​the light-transmitting opening 1262 between the second pixel repeating unit 122 and the transition display area 10c is also larger, which is beneficial to reducing the area ratio of the second electrode layer 126 of the second display area 10b in the following, thereby improving the transmittance of light in the second display area 10b, which is beneficial to improving the photosensitivity of the photosensitive element 20.

[0034] It should be noted that the minimum spacing between two adjacent second pixel repeating units 122 refers to the minimum spacing between the edges of the two second sub-pixels 124 closest to each other in the two adjacent second pixel repeating units 122, and the minimum spacing between two adjacent first pixel repeating units 121 refers to the minimum spacing between the edges of the two first sub-pixels 123 closest to each other in the two adjacent first pixel repeating units 121.

[0035] Please continue reading Figure 3 The first sub-pixels 123 in the first pixel repeating unit 121 include a first light-emitting unit 123a emitting a first color light, a second light-emitting unit 123b emitting a second color light, and a third light-emitting unit 123c emitting a third color light. The colors of the first, second, and third colors are different. In a first pixel repeating unit 121, the ratio of the number of first light-emitting units 123a, the number of second light-emitting units 123b, and the number of third light-emitting units 123c is 1:1:2. The shapes of the first sub-pixels 123 include, but are not limited to, circular, prismatic, rectangular, and elliptical.

[0036] The plurality of second sub-pixels 124 in the second pixel repeating unit 122 include a fourth light-emitting unit 124a that emits a first color light, a fifth light-emitting unit 124b that emits a second color light, and a sixth light-emitting unit 124c that emits a third color light. Within a second pixel repeating unit 122, the ratio of the number of fourth light-emitting units 124a, the number of fifth light-emitting units 124b, and the number of sixth light-emitting units 124c is 1:1:2. The shapes of the plurality of second sub-pixels 124 include, but are not limited to, circular, prismatic, rectangular, and elliptical.

[0037] Among them, the shape and size of the first light-emitting unit 123a and the fourth light-emitting unit 124a can be the same or different; the shape and size of the second light-emitting unit 123b and the fifth light-emitting unit 124b can be the same or different; the shape and size of the third light-emitting unit 123c and the sixth light-emitting unit 124c can be the same or different.

[0038] Specifically, the first light-emitting unit 123a and the fourth light-emitting unit 124a have the same shape and size, and the shape of the first light-emitting unit 123a and the shape of the fourth light-emitting unit 124a are both circular, and the first color light is blue; the second light-emitting unit 123b and the fifth light-emitting unit 124b have the same shape and size, and the shape of the second light-emitting unit 123b and the shape of the fifth light-emitting unit 124b are both circular, and the second color light is red; the third light-emitting unit 123c and the sixth light-emitting unit 124c have the same shape and size, and the shape of the third light-emitting unit 123c and the shape of the sixth light-emitting unit 124c are both circular, and the third color light is green.

[0039] In a first pixel repeating unit 121, a first light-emitting unit 123a, two third light-emitting units 123c, and a second light-emitting unit 123b are arranged in a square. A first light-emitting unit 123a is adjacent to a third light-emitting unit 123c in the first direction and the second direction, respectively. A second light-emitting unit 123b is adjacent to a third light-emitting unit 123c in the first direction and the second direction, respectively. The two third light-emitting units 123c are arranged diagonally. A first light-emitting unit 123a and a second light-emitting unit 123b are also arranged diagonally. The distance between the center of a first light-emitting unit 123a and the center of a third light-emitting unit 123c is equal to the distance between the center of a first light-emitting unit 123a and the center of another third light-emitting unit 123c. The first direction is perpendicular to the second direction.

[0040] In a second pixel repeating unit 122, a fourth light-emitting unit 124a, two sixth light-emitting units 124c, and a fifth light-emitting unit 124b are arranged in a square. A fourth light-emitting unit 124a is adjacent to a sixth light-emitting unit 124c in the first direction and the second direction, respectively. A fifth light-emitting unit 124b is adjacent to a sixth light-emitting unit 124c in the first direction and the second direction, respectively. The two sixth light-emitting units 124c are arranged diagonally, and the fourth light-emitting unit 124a is arranged diagonally with the fifth light-emitting unit 124b. The centers of the two sixth light-emitting units 124c are equal to the centers of the fourth light-emitting unit 124a, and the center of the sixth light-emitting unit 124c is smaller than the center of the third light-emitting unit 123c and the center of the first light-emitting unit 123a.

[0041] It should be noted that the arrangement of the plurality of first sub-pixels 123 in a first pixel repeating unit 121 may be different from the arrangement of the plurality of second sub-pixels 124 in a second pixel repeating unit 122. Figure 6 As shown, Figure 6 (A) is a schematic diagram of a plurality of first pixel repeating units located in the first display area, Figure 6 (B) is a schematic diagram of a plurality of second pixel repeating units located in the second display area. Figure 6 (A) and Figure 3 (A) in is exactly the same, Figure 6 (B) and Figure 3 (B) is basically similar, except that the plurality of second sub-pixels 124 in one second pixel repeating unit 122 are arranged in an irregular pattern.

[0042] like Figure 4 As shown, the display panel 10 includes a first electrode layer 127 and a second electrode layer 126. The first electrode layer 127 is located between the light-emitting layer 12 and the substrate 11, and the second electrode layer 126 is located on the side of the light-emitting layer 12 away from the substrate 11. The first electrode layer 127 includes a first transparent conductive layer, a metal layer, and a second transparent conductive layer stacked in sequence. The metal layer is made of materials including, but not limited to, silver. The second electrode layer 126 is made of a silver-magnesium alloy. Both the first and second electrode layers 127 and 126 are made of metal, which reduces light transmittance.

[0043] The first electrode layer 127 includes a plurality of first anodes 1271, a plurality of second anodes 1272, and a plurality of third anodes 1273. In the thickness direction of the display panel 10, a plurality of spaced-apart first anodes 1271 are arranged to overlap with a plurality of first sub-pixels 123 of a first pixel repeating unit 121, with one first anode 1271 corresponding to one first sub-pixel 123. In the thickness direction of the display panel 10, a plurality of spaced-apart second anodes 1272 are arranged to overlap with a plurality of second sub-pixels 124 of a second pixel repeating unit 122, with one second anode 1272 corresponding to one second sub-pixel 124. In the thickness direction of the display panel 10, one third anode 1273 is arranged to overlap with one third sub-pixel 125.

[0044] In order to improve the light transmittance of the second display area 10b, the second electrode layer 126 in the second display area 10b needs to be patterned. Figure 4 and Figure 7 As shown, the second electrode layer 126 includes a patterned cathode 1261 and a plurality of light-transmitting openings 1262 distributed in the patterned cathode 1261 .

[0045] The patterned cathode 1261 is disposed in the first display area 10a, the second display area 10b, and the transitional display area 10c. The portions of the patterned cathode 1261 located in the first display area 10a and the transitional display area 10c are integral. The portion of the patterned cathode 1261 located in the second display area 10b is provided with a plurality of light-transmitting openings 1262. Some of these light-transmitting openings 1262 are located between two adjacent second pixel repeating units 122, and some are located between a second pixel repeating unit 122 and the transitional display area 10c. These multiple light-transmitting openings 1262 enhance the light transmittance of the second display area 10b.

[0046] In this embodiment, if Figure 4 As shown, the display panel 10 further includes a pixel circuit layer 13 and a transparent wire layer 14 . The transparent wire layer 14 is located between the pixel circuit layer 13 and the first electrode layer 127 in the thickness direction of the display panel 10 .

[0047] The pixel circuit layer 13 includes a plurality of first pixel circuits 131, a plurality of second pixel circuits 132, and a plurality of metal lines 133. The first pixel circuits 131 and the second pixel circuits 132 may be the same or different. The first pixel circuits 131 and the second pixel circuits 132 are each selected from one of a 7T1C circuit, a 6T1C circuit, a 6T2C circuit, a 5T1C circuit, a 4T1C circuit, a 3T1C circuit, and a 2T1C circuit.

[0048] like Figure 4 and Figure 8As shown, multiple first pixel circuits 131 are located in the transition display area 10c. In the transition display area 10c, multiple first pixel circuits 131 are aggregated to form multiple pixel driving circuit islands 131a. Each pixel driving circuit island 131a includes at least two first pixel circuits 131.

[0049] The plurality of second sub-pixels 124 in the second display area 10b are electrically connected to the plurality of first pixel circuits 131, and each first pixel circuit 131 electrically connected to the plurality of second sub-pixels 124 is electrically connected to at least two second sub-pixels 124. Specifically, each first pixel circuit 131 electrically connected to the plurality of second sub-pixels 124 is electrically connected to at least two second sub-pixels 124 that emit light of the same color. For example, one first pixel circuit 131 is electrically connected to two fourth light-emitting units 124a in two second pixel repeating units 122, one first pixel circuit 131 is electrically connected to four sixth light-emitting units 124c in two second pixel repeating units 122, and one first pixel circuit 131 is electrically connected to two fifth light-emitting units 124b in two second pixel repeating units 122.

[0050] The transparent conductive line layer 14 includes multiple transparent conductive lines 141. Some transparent conductive lines 141 are located in the second display area 10b, while others extend from the transition display area 10c to the second display area 10b. The multiple transparent conductive lines 141 can be arranged in a single layer or multiple layers. When the multiple transparent conductive lines 141 are arranged in multiple layers, an insulating layer is provided between the transparent conductive lines 141 in different layers. The multiple transparent conductive lines 141 are made of at least one of indium tin oxide (ITO) and indium zinc oxide (IZO).

[0051] Among the at least some of the transparent conductive lines 141 located in the second display area 10b, one end of at least one transparent conductive line 141 is electrically connected to at least two second sub-pixels 124 emitting the same color light in two second pixel repeating units 122, and the other end of the at least one transparent conductive line 141 is electrically connected to one first pixel circuit 131. This improves the light transmittance of the second display area 10b by electrically connecting one first pixel circuit 131 to the at least two second sub-pixels 124 emitting the same color light in two second pixel repeating units 122.

[0052] In this embodiment, at least a portion of the transparent conductive line 141 in the second display area 10b is serpentine-shaped to suppress diffraction of light when it passes through the second display area 10b, thereby improving the display quality of the second display area 10b. A serpentine shape is a non-linear shape, including a zigzag line, an arc, or a curved line.

[0053] like Figure 5As shown, a plurality of first pixel circuits 131 may also be disposed in the second display area 10 b , and the plurality of first pixel circuits 131 are electrically connected to the plurality of second sub-pixels 124 .

[0054] like Figure 4 and Figure 5 As shown, a plurality of second pixel circuits 132 are located in the first display area 10a and are disposed between the light-emitting layer 12 and the substrate 11. The plurality of second pixel circuits 132 are electrically connected to the plurality of first sub-pixels 123 in the plurality of first pixel repeating units 121 to drive the plurality of first sub-pixels 123 to emit light. One second pixel circuit 132 is electrically connected to one first sub-pixel 123.

[0055] A plurality of metal lines 133 are located in the transitional display area 10c and are disposed near the second display area 10b. The plurality of metal lines 133 surround the second display area 10b and are electrically connected to the first pixel circuit 131. The plurality of metal lines 133 serve as data lines. The outer contour of the plurality of metal lines 133 near the second display area 10b defines the boundary between the transitional display area 10c and the second display area 10b.

[0056] like Figure 8 As shown, the transition display area 10c includes a first wiring area 10c1 close to the second display area 10b and a second wiring area 10c2 close to the second display area 10b. The first wiring area 10c1 is located outside the second wiring area 10c2. In the direction from the second display area 10b to the transition display area 10c, the size occupied by the multiple metal wires 133 in the first wiring area 10c1 is larger than the size occupied by the multiple metal wires 133 in the second wiring area 10c2.

[0057] Since the patterning design of the second electrode layer 126 in the second display area 10b is to irradiate the infrared laser from the back of the display panel 10, that is, under the substrate of the display panel 10, onto part of the second electrode layer 126 in the second display area 10b, the part of the second electrode layer 126 in the second display area 10b absorbs the infrared laser, while the organic layer, inorganic insulating layer, etc. in the display panel have almost no absorption of the infrared laser. Through thermal relaxation and heat transfer, the temperature of this part of the second electrode layer 126 increases, and changes such as melting and vaporization occur, so that this part of the second electrode layer 126 is peeled off, thereby realizing the patterning of the second electrode layer 126 in the second display area 10b.

[0058] In order to prepare a patterned cathode 1261 and a plurality of light-transmitting openings 1262 distributed in the patterned cathode 1261 after the entire surface of the second electrode layer 126 is irradiated with an infrared laser, the present application sets a metal shading layer between the light-emitting layer 12 of the display panel 10 and the substrate 11 to block part of the infrared laser. When the infrared laser is irradiated to the second display area 10b, the infrared laser that is not blocked by the metal shading layer is irradiated to part of the cathode, and the part of the cathode is removed to form a plurality of light-transmitting openings 1262, thereby realizing the patterning of the second electrode layer 126.

[0059] like Figure 4 and Figure 9 As shown, the metal light-shielding layer 15 is disposed between the light-emitting layer 12 and the substrate 11 in the thickness direction of the display panel 10, and the metal light-shielding layer 15 is disposed between the pixel circuit layer 13 and the substrate 11. The metal light-shielding layer 15 includes a plurality of first light-shielding blocks 151, a second light-shielding block 152, and a plurality of light-shielding connecting lines 153. The thickness of the metal light-shielding layer 15 is 500 angstroms to 5000 angstroms, for example, 1000 angstroms, 1500 angstroms, 2000 angstroms, or 3000 angstroms. The metal light-shielding layer 15 is made of at least one material selected from molybdenum, aluminum, titanium, lithium, tungsten, copper, and silver.

[0060] like Figure 4 As shown, a plurality of first light-shielding blocks 151 are located in the second display area 10b and overlap with the patterned cathode 1261. Each second pixel repeating unit 122 in at least a portion of the second pixel repeating units 122 corresponds to a first light-shielding block 151. Each first light-shielding block 151 at least partially overlaps with the corresponding second pixel repeating unit 122, thereby shielding infrared laser light through a first light-shielding block 151 to protect the plurality of second sub-pixels 124 in each second pixel repeating unit 122 in at least a portion of the second pixel repeating units 122. Specifically, each second pixel repeating unit 122 in the plurality of second pixel repeating units 122 corresponds to a first light-shielding block 151, and the outer contour of each second pixel repeating unit 122 is the same as, or substantially the same as, the outer contour of the corresponding first light-shielding block 151.

[0061] This application clusters the multiple second sub-pixels 124 within each second pixel repeating unit 122 in the second display area 10b. This reduces the area of ​​the shared cathode for the multiple second sub-pixels 124 within each second pixel repeating unit 122, while increasing the area of ​​the light-transmitting opening 1262 between two adjacent second pixel repeating units 122, thereby improving the light transmittance of the second display area 10b. Based on this clustered design for the multiple second sub-pixels 124 within each second pixel repeating unit 122, a first light-shielding block 151 is provided corresponding to each second pixel repeating unit 122. This allows the second electrode layer 126 in the second display area 10b to be patterned to produce the patterned cathode 1261, while preventing infrared laser damage to the components of each second pixel repeating unit 122.

[0062] In this embodiment, a plurality of second anodes 1272 overlappingly arranged corresponding to a plurality of second sub-pixels 124 of a second pixel repeating unit 122 are overlapped with a first light shielding block 151 provided corresponding to a second pixel repeating unit 122, so as to prevent the infrared laser from irradiating the plurality of second anodes 1272 overlappingly arranged corresponding to a plurality of second sub-pixels 124 of a second pixel repeating unit 122 during the infrared laser patterning of the second electrode layer 126, thereby causing damage to the second anodes 1272.

[0063] Furthermore, the orthographic projections of the multiple second anodes 1272 corresponding to one second pixel repeating unit 122 on the substrate 11 are located within the orthographic projection of one first light-shielding block 151 on the substrate 11, and the minimum spacing between the orthographic projection of the outer contour of one first light-shielding block 151 corresponding to one second pixel repeating unit 122 on the substrate 11 and the orthographic projection of the outer contours of the multiple second anodes 1272 corresponding to one second pixel repeating unit 122 on the substrate 11 is greater than or equal to 0.5 microns and less than or equal to 3 microns. This allows one first light-shielding block 151 to protect the multiple spaced second anodes 1272 corresponding to one second pixel repeating unit 122 while meeting process accuracy, while preventing the area of ​​one first light-shielding block 151 from being too large, which would result in the area of ​​the patterned cathode 1261 being too large and thus unfavorable for reducing the transmittance of light. For example, the minimum distance between the orthographic projection of the outer contours of the plurality of second anodes 1272 corresponding to a second pixel repeating unit 122 on the substrate 11 and the orthographic projection of the outer contour of a corresponding first light shielding block 151 on the substrate 11 can be 1 micron, 1.5 microns, 2 microns or 3 microns.

[0064] Furthermore, the outer contours of the plurality of first light shielding blocks 151 are all serpentine-shaped to suppress the diffraction phenomenon in the second display area 10 b.

[0065] like Figure 5As shown, when the plurality of first pixel circuits 131 are disposed in the second display area 10 b , the plurality of first pixel circuits 131 and the plurality of first light shielding blocks 151 are overlapped, so that the plurality of first light shielding blocks 151 also protect the plurality of first pixel circuits 131 .

[0066] like Figure 9 As shown, the second light-shielding block 152 is arranged around multiple light-shielding connecting lines 153 and multiple first light-shielding blocks 151, and at least a portion of the second light-shielding block 152 is arranged at the edge of the second display area 10b, so that during the process of infrared laser patterning of the second electrode layer 126, the second light-shielding block 152 blocks the infrared laser and prevents the infrared laser from irradiating the multiple metal wires 133 located in the transition display area 10c and close to the second display area 10b and causing damage to the multiple metal wires 133.

[0067] Specifically, the second light shielding block 152 extends from the second display area 10b to the transition display area 10c. During the infrared laser patterning process of the second electrode layer, the second light shielding block 152 shields the infrared laser, thereby preventing the infrared laser from irradiating and damaging the metal lines near the edge of the second display area 10b and the thin-film transistors in the first pixel circuit 131. The second light shielding block 152 in the transition display area 10c can also be provided to protect the pixel circuit island 131a.

[0068] It should be noted that infrared lasers are linear light sources and their energy has a Gaussian distribution. The energy at the edge of the infrared laser is relatively low, posing a risk of ineffective cathode removal. To ensure complete removal of the second electrode layer 126 in the second display area 10b near the transitional display area 10c, the higher-energy portion of the infrared laser is used to illuminate the second electrode layer 126 in the second display area 10b near the transitional display area 10c. However, without a metal layer shielding this, the edge energy of the infrared laser can damage the metal lines and thin-film transistors in the transitional display area 10c near the second display area 10b. Therefore, a second light shielding block 152 is required in the transitional display area 10c. Similarly, due to the influence of the infrared laser's edge energy, to prevent damage to the metal lines near the second display area 10b during the infrared laser patterning of the second electrode layer in the second display area 10b, the second light shielding block 152 needs to extend from the transitional display area 10c to the second display area 10b. In addition, since the second light shielding block 152 extends to the second display area 10 b , the second light shielding block 152 blocks the infrared laser, so that the unpatterned portion of the second electrode layer 126 is also located in the second display area 10 b .

[0069] like Figure 4 and Figure 9As shown, the second light-shielding block 152 has a first edge 152a located in the second display area 10b. The first edge 152a is a smooth circle. The dimension H of the first edge 152a from the junction between the second display area 10b and the transition display area 10c is greater than or equal to 1 micron and less than 3 microns. This allows the second light-shielding block 152 to protect the multiple metal wires 133 close to the second display area 10b while meeting the process accuracy, while avoiding the area of ​​the second light-shielding block 152 being too large, which is not conducive to improving the transmittance of the second display area 10b.

[0070] In the direction from the second display area 10b to the transition display area 10c, the size of the second light-shielding block 152 in the first wiring area 10c1 is larger than the size of the second light-shielding block 152 in the second wiring area 10c2, so that the second light-shielding block 152 can better protect the metal wire 133 of the first wiring area 10c1.

[0071] Specifically, if Figure 9 As shown, the second light-shielding block 152 is annular, the second edge of the second light-shielding block 152 located in the transition display area 10c is elliptical, and the first edge 152a of the second light-shielding block 152 located in the second display area 10b is circular, so that the second light-shielding block 152 can match the arrangement of the multiple metal wires 133, thereby better protecting the multiple metal wires 133.

[0072] Furthermore, if Figure 10 As shown, the first edge 152 a is serpentine-shaped to further suppress the diffraction of light by the first edge 152 a of the second light-shielding block 152 .

[0073] The width of the second light shielding block 152 is greater than or equal to 10 micrometers to prevent the infrared laser with a processing precision of 10 micrometers from damaging the plurality of metal wires 133 in the transition display area 10c.

[0074] Multiple light-shielding connecting lines 153 are located in the second display area 10b and overlap at least a portion of the transparent conductive lines 141 in the second display area 10b. The multiple light-shielding connecting lines 153 also overlap the patterned cathode 1261. During the infrared laser patterning of the second electrode layer, the multiple light-shielding connecting lines 153 provide light shielding, preventing the infrared laser from irradiating at least a portion of the transparent conductive lines 141 and potentially damaging them, thereby preventing the display effect of the second sub-pixels 124 in the second display area 10b from being affected. Specifically, the multiple light-shielding connecting lines 153 overlap one-to-one with the multiple transparent conductive lines 141 located in the second display area 10b.

[0075] The orthographic projection of at least a portion of the transparent conductive line 141 located in the second display area 10b on the substrate 11 is located within the orthographic projection of the light-shielding connecting line 153 on the substrate 11, and the difference between the width of the light-shielding connecting line 153 and the width of the transparent conductive line 141 is greater than or equal to 0.5 microns and less than or equal to 3 microns. This allows the light-shielding connecting line 153 to protect the transparent conductive line 141 while meeting process accuracy, while preventing the light-shielding connecting line 153 from being too wide, which would be detrimental to reducing transmittance.

[0076] The shading connecting line 153 connects two adjacent first shading blocks 151, and at least one light-transmitting opening 1262 is overlapped with the area surrounded by the two adjacent first shading blocks 151 and the light-shielding connecting line 153; and / or, the light-shielding connecting line 153 is connected to the adjacent first shading block 151 and the second shading block 152, and at least one light-transmitting opening 1262 is overlapped with the area surrounded by the first shading block 151, the second shading block 152 and the light-shielding connecting line 153, and the light-transmitting opening 1262 does not overlap with the metal shading layer 15.

[0077] Specifically, a portion of the shading connecting line 153 connects two adjacent first shading blocks 151, and the area enclosed by the adjacent first shading blocks 151 and the shading connecting line 153 connecting the adjacent first shading blocks 151 is provided with a hollow portion 154; another portion of the shading connecting line 153 connects the second shading block 152 and a portion of the first shading block 151, and the area enclosed by the second shading block 152, a portion of the first shading block 151 and a portion of the shading connecting line 153 is also provided with a hollow portion 154.

[0078] Among them, multiple hollow portions 154 are overlapped with multiple light-transmitting openings 1262, a part of the light-transmitting openings 1262 are overlapped with a second light-shielding block 152, a part of the first light-shielding block 151 adjacent to the second light-shielding block 152, and a part of the hollow portion 154 of the area enclosed by the light-shielding connecting line 153, and another part of the light-transmitting openings 1262 are overlapped with the adjacent first light-shielding block 151 and the hollow portion 154 of the area enclosed by the light-shielding connecting line connecting the adjacent first light-shielding block 151.

[0079] Furthermore, if Figure 10 As shown, the light shielding connection lines 153 are all serpentine in shape, thereby further suppressing the diffraction phenomenon of the second display area 10b and improving the display effect of the second display area 10b.

[0080] In this embodiment, the substrate 11 includes a first organic layer, an inorganic layer, and a second organic layer stacked in sequence. The first and second organic layers are both polyimide layers, and the inorganic layer is at least one of a silicon nitride layer and a silicon oxide layer. Because ions are present in the first and second organic layers, the second pixel circuit 132 generates current during operation. This current polarizes the ions, which in turn generates charge. This charge affects the electrical properties of the thin-film transistors in the second pixel circuit 132.

[0081] like Figure 4 、 Figure 9 and Figure 10 As shown, the display panel of this embodiment also includes a plurality of shielding metal blocks 16, and the plurality of shielding metal blocks 16 are arranged in the same layer as the metal shading layer 15 and correspond to the plurality of second pixel circuits 132. Each shielding metal block 16 corresponds to at least one thin film transistor in a second pixel circuit 132, and each shielding metal block 16 is connected to a fixed reference voltage to improve the problem that the ion polarization in the substrate 11 affects the electrical performance of the thin film transistor in the second pixel circuit 132.

[0082] The thickness of the plurality of shielding metal blocks 16 is smaller than the thickness of the metal light shielding layer 15 , so as to ensure the light shielding effect of the metal light shielding layer 15 .

[0083] The description of the above embodiments is only used to help understand the technical solutions and core ideas of this application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that: The display panel has a first display area and a second display area, and the display panel includes: substrate; A first electrode layer is provided on one side of the substrate; a light-emitting layer located on a side of the first electrode layer away from the substrate, the light-emitting layer comprising: a plurality of first pixel repeating units located in the first display area, each of the first pixel repeating units comprising a plurality of first sub-pixels; and a plurality of second pixel repeating units located in the second display area, each of the second pixel repeating units comprising a plurality of second sub-pixels, wherein a minimum spacing between two adjacent second pixel repeating units is greater than a minimum spacing between two adjacent first pixel repeating units; a second electrode layer, disposed on a side of the light-emitting layer away from the substrate, the second electrode layer comprising a plurality of light-transmitting openings disposed in the second display area and between adjacent second pixel repeating units; and A metal light-shielding layer is provided between the light-emitting layer and the substrate, and the metal light-shielding layer includes: a plurality of first light shielding blocks, located in the second display area, wherein the first light shielding blocks at least partially overlap with corresponding second pixel repeating units; a plurality of light-shielding connection lines, located in the second display area; and a second light-shielding block, arranged around the plurality of first light-shielding blocks and the plurality of light-shielding connecting lines, wherein at least a portion of the second light-shielding block is arranged at an edge of the second display area; Among them, at least one of the light-transmitting openings overlaps with the area surrounded by the adjacent first light-shielding block and the light-shielding connecting line; and / or, at least one of the light-transmitting openings overlaps with the area surrounded by the adjacent first light-shielding block, the second light-shielding block and the light-shielding connecting line.

2. The display panel according to claim 1, wherein: The metal light shielding layer includes at least one of molybdenum, aluminum, titanium, tungsten, copper and silver.

3. The display panel according to claim 1, wherein: The first display area is located outside the second display area. The display panel also has a transition display area between the first display area and the second display area. The area of ​​the first display area is larger than that of the second display area and the transition display area.

4. The display panel according to claim 3, wherein: The second light-shielding block extends from the second display area to the transition display area. The second light-shielding block is located at an edge of the second display area and has a distance from the boundary between the second display area and the transition display area greater than or equal to 1 micron and less than 3 microns.

5. The display panel according to claim 3, wherein: The display panel further includes: A pixel circuit layer, located between the first electrode layer and the metal light-shielding layer, comprising: a plurality of first pixel circuits located in the transition display area or the second display area, wherein one first pixel circuit is electrically connected to at least two second sub-pixels; and A plurality of metal lines are located in the transition display area and disposed near the second display area. The plurality of metal lines are electrically connected to the first pixel circuit, and the second light shielding block overlaps with at least a portion of the metal lines.

6. The display panel according to claim 5, wherein: The plurality of first pixel circuits are located in the second display area, and the plurality of first pixel circuits overlap with the plurality of first light shielding blocks.

7. The display panel according to claim 5, wherein: A plurality of the first pixel circuits are arranged in the transition display area, and the display panel further includes: A transparent wire layer is located between the pixel circuit layer and the first electrode layer, and the transparent wire layer includes a plurality of transparent wires electrically connecting the plurality of second sub-pixels and the plurality of first pixel circuits, and at least a portion of the transparent wires is located in the second display area and overlaps with at least a portion of the light-shielding connecting lines.

8. The display panel according to claim 5, wherein: The pixel circuit layer further includes: a plurality of second pixel circuits, the plurality of second pixel circuits being electrically connected to the plurality of first sub-pixels in the first pixel repeating unit; and A plurality of shielding metal blocks are provided in the same layer as the metal light-shielding layer and overlap with the plurality of second pixel circuits, and a thickness of the plurality of shielding metal blocks is less than a thickness of the metal light-shielding layer.

9. The display panel according to any one of claims 2 to 8, wherein: The first electrode layer includes a plurality of anodes overlapping with a plurality of second sub-pixels corresponding to one second pixel repeating unit, and a first light shielding block corresponding to one second pixel repeating unit overlaps with a plurality of anodes corresponding to one second pixel repeating unit.

10. The display panel according to claim 9, wherein: The orthographic projections of the plurality of anodes corresponding to one of the second pixel repeating units on the substrate are located within the orthographic projection of one of the first light-shielding blocks on the substrate, and the minimum distance between the orthographic projection of the outer contour of one of the first light-shielding blocks corresponding to one of the second pixel repeating units on the substrate and the orthographic projection of the outer contour of the plurality of anodes corresponding to one of the second pixel repeating units on the substrate is greater than or equal to 0.5 microns and less than or equal to 3 microns.

11. The display panel according to any one of claims 1 to 8, wherein: A distance between two adjacent first sub-pixels in a first pixel repeating unit is greater than a distance between two adjacent second sub-pixels in a second pixel repeating unit; The number of the second sub-pixels in one second pixel repeating unit is the same as the number of the first sub-pixels in one first pixel repeating unit.

12. A display device, characterized in that: The display device includes the display panel according to any one of claims 1 to 11 and a photosensitive element, and the photosensitive element is arranged corresponding to the second display area.

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